LPC MicrocontrollersのトピックBuilding an I3C Sensor Network Using LPC553x/LPC55S3x

Building an I3C Sensor Network Using LPC553x/LPC55S3x

bell_huang — Fri, 19 Jan 2024 02:49:50 GMT

I build and run the sample from Building an I3C Sensor Network Using LPC553x/LPC55S3x. In i3c_sensor_network.c, demo_icm42688pDev is NULL and thus it cannot receive ICM42688 sensor data. Did I miss any configurations?

In AN13577.pdf, the picture of Figure 2 LPC55S3x EVK board, is not clear to see how the jumpers are shorted. Could you provide clearer pictures or descriptions for the differences from the default configuration.

Board: LPC55S36-EVK (LPCXpresso55S36 Development Board)

Associated File: AN13577SW

Document: AN13577, Building an I3C Sensor Network Using LPC553x/LPC55S3x

Re: Building an I3C Sensor Network Using LPC553x/LPC55S3x

Pavel_Hernandez — Fri, 19 Jan 2024 23:46:31 GMT

Hello, my name is Pavel, and I will be supporting your case, let me get into your case and when I have more information, I will contact you.

Best regards,
Pavel

Re: Building an I3C Sensor Network Using LPC553x/LPC55S3x

bell_huang — Mon, 22 Jan 2024 01:21:34 GMT

Hi Pavel,

\AN13577SW\lpcxpresso55s36_i3c_sensor_network\doc\readme.txt mentions: Connect the jumper resistor R554 2-3. I see that by default there is an object (kind of like a capacitor) connected to 1-2, should I move it to 2-3?

Re: Building an I3C Sensor Network Using LPC553x/LPC55S3x

Pavel_Hernandez — Mon, 22 Jan 2024 21:06:10 GMT

Hello, I reviewed your information, if you want to review the default position of the jumper, maybe this link could help you.

LPCXpresso55S36 overview | LPCXpresso55S36UM: LPCXpresso55S36 Development Board User Manual | NXP Semiconductors

The last image you sent is a jumper, which is the same as a resistor but with 0 ohms and yes you need to move that.
But if you want to let me research more information about this, could you let me know about the revision of your board?

Best regards,
Pavel

Re: Building an I3C Sensor Network Using LPC553x/LPC55S3x

bell_huang — Tue, 23 Jan 2024 02:17:42 GMT

Thanks. After moving the jumper R554 from 1-2 to 2-3, it can read ICM42688 sensor data. It can also read P3T1175 temp data from P3T1755DP-ARD.

The revision of my board seems to be D.The default jumpers described in the LPCXpresso55S36 overview works for me.

https://docs.nxp.com/bundle/LPCXpresso55S36UM/page/topics/LPCXpresso55S36_overview.html